ERA5 almanac comparison — 8 years of real data
Key West vs Savannah: weather in August
Key West edges out Savannah for sun in August: 13% clear historically versus 8% (8-year ERA5 average, a 5-point gap). Both are viable — Key West is the safer bet.
Key West
FL
- Clear days, August
- 13%
- Sample size
- n=248 days
- Avg high
- 86°F
- Early August (1st–15th)
- 15%
- Late August (16th–end)
- 11%
- Rain frequency
- 62% of days
Savannah
GA
- Clear days, August
- 8%
- Sample size
- n=248 days
- Avg high
- 87°F
- Early August (1st–15th)
- 3%
- Late August (16th–end)
- 12%
- Rain frequency
- 73% of days
Frequently asked
Is Key West or Savannah warmer in August?
Savannah runs warmer by day in August. Key West averages highs of 86°F (highs n=248 days); Savannah averages highs of 87°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Key West or Savannah in August?
Days with measurable rain: Key West 62%, Savannah 73% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in August, Key West or Savannah?
Key West edges out Savannah for sun in August: 13% clear historically versus 8% (8-year ERA5 average, a 5-point gap). Both are viable — Key West is the safer bet.
Compare Key West vs Savannah in another month
All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.